LEMON Manuals: Even more car manuals for everyone
Home >> Honda >> 1983 >> Prelude Automatic >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Disc & Drum >> Testing >> Power Brake Unit >> Functional Test

Functional Test

  1. With engine stopped, depress brake pedal several times, then depress pedal hard and hold pressure for 15 seconds. If pedal sinks, master cylinder, brake line or wheel cylinder is faulty.
  2. Start engine with pedal depressed. If pedal sinks slightly, vacuum unit is working. If pedal height does not vary, booster is faulty.
scientia non olet · About LEMON Manuals